wow...i just find this abysmal. not to say it's necessarily bad for all, but just ew. i prefer and recommend geany over this.
You can find a better editor for a particular programming language. You won't find a better one if you use multiple languages.
slime, org-mode, supports everything under the sun -- with common, but customizable keybindings, extensible and thoroughly hypertextual.. what could _possibly_ be better?
First app I install in a new distribution. If you write code, it's worth the effort to learn.